Managing Minimum Order Quantity
To be able to limit the minimum quantity of a particular product per order, access the admin area of your website and then move to the App Shop and Store tabs.
Find the Minimum Order Quantity module version 1.0.0 with a quick search and install it on your website.
Once installed, go to the Products/Catalogue and Products (Brands/Categories) tab.
On the product editing page select the Main details tab.
To set the minimum product quantity for purchase within a single order for a particular product, enter the quantity in the corresponding field in the Details section.